Light bulb



FIG. 1 is a perspective view of an embodiment of a light bulb showing mynew design;

FIG. 2 is a front elevational view of the embodiment thereof;

FIG. 3 is a rear elevational view of the embodiment thereof;

FIG. 4 is a left side view of the embodiment thereof;

FIG. 5 is a right side view of the embodiment thereof;

FIG. 6 is a top plan view of the embodiment thereof; and,

FIG. 7 is a bottom plan view of the embodiment thereof.

The broken lines in the drawings illustrate portions of the light bulbwhich form no part of the claimed design.

CLAIM The ornamental design for a light bulb, as shown and described.